释义 |
WordReference Random House Unabridged Dictionary of American English © 2024i•so•bar (ī′sə bär′),USA pronunciation n. - Meteorologya line drawn on a weather map or chart that connects points at which the barometric pressure is the same.
Also, i•so•bare (ī′sə bâr′).USA pronunciation [Physics, Chem.]one of two or more atoms having equal atomic weights but different atomic numbers. Cf. isotope.- Greek isobaré̄s of equal weight. See iso-, baro-
- 1860–65
i′so•bar′ism, n. Collins Concise English Dictionary © HarperCollins Publishers:: isobar /ˈaɪsəʊˌbɑː/ n - a line on a map connecting places of equal atmospheric pressure, usually reduced to sea level for purposes of comparison, at a given time or period
- any of two or more atoms that have the same mass number but different atomic numbers
Compare isotope Etymology: 19th Century: from Greek isobarēs of equal weight, from iso- + baros weightˈisobarˌism n |